Molecular and cellular approaches of Myelin repair

Research center

47 bld de l'Hôpital
75651 Paris
Alexis Brice

Institution

Inserm
CNRS
Université Pierre et Marie Curie
ED158
Université Pierre et Marie Curie

Laboratory

Phone: 01 57 27 41 23 (41 24)
UMRS 1127 UMR 7225
IHU A-ICM, Neuratris

Keywords

myelin
myelination
repair
Multiple Sclerosis
Available to host a PhD student

Publications

Wegener A, Deboux C, Bachelin C, Frah M, Kerninon C, Seilhean D, Weider M, Wegner M, Nait-Oumesmar B. Gain of Olig2 function in oligodendrocyte progenitors promotes remyelination. Brain. 2015 Jan;138(Pt 1):120-35. doi: 10.1093/brain/awu375.

Moll NM, Hong E, Fauveau M, Naruse M, Kerninon C, Tepavcevic V, Klopstein A, Seilhean D, Chew LJ, Gallo V, Nait Oumesmar B (2013) SOX17 is expressed in regenerating oligodendrocytes in experimental models of demyelination and in multiple sclerosis. Glia.

(10):1659-72.

Blanchard B, Heurtaux T, Garcia C, Moll NM, Caillava C, Grandbarbe L, Klosptein A, Kerninon C, Frah M, Coowar D, Baron-Van Evercooren A, Morga E, Heuschling P, Nait Oumesmar B (2013) Tocopherol derivative TFA-12 promotes myelin repair in experimental models of multiple sclerosis. J Neurosci. 33(28):11633-42.

Nakatani H, Martin E, Hassani H, Clavairoly A, Maire CL, Viadieu A, Kerninon C, Delmasure A, Frah M, Weber M, Nakafuku M, Zalc B, Thomas JL, Guillemot F, Nait-Oumesmar B, Parras C (2013) Ascl1/Mash1 promotes brain oligodendrogenesis during myelination and remyelination. J Neurosci. 33(23):9752-68.

Tepavcevic V, Nait-Oumesmar B, Baron-Van Evercooren A. (2012) Olfactory dysfunction in multiple sclerosis: role for subventricular zone progenitors. Med Sci (Paris) 28(8-9):683-7.

Durrenberger PF, Fernando FS, Magliozzi R, Kashefi SN, Bonnert TP, Ferrer I, Seilhean D, Nait Oumesmar B, Schmitt A, Gebicke-Haerter PJ, Falkai P, Grünblatt E, Palkovits M, Parchi P, Capellari S, Arzberger T, Kretzschmar H, Roncaroli F, Dexter DT, Reynolds R (2012) Selection of novel reference genes for use in the human central nervous system: a BrainNet Europe Study. Acta Neuropathol 124(6):893-903.

Fields of research

Neurological and psychiatric diseases

Research Theme

The team is based on two PIs, Anne Baron-Van Evercooren and Brahim Nait Oumesmar, who share a common interest in understanding how remyelination proceeds and how it can be promoted with a strong emphasis on remyelinating cells and animal models of demyelination. They have, however, their independent lines of investigations. Brahim Nait Oumesmar focuses on the transcriptional regulation of CNS myelination and remyelination and Anne Baron-Van Evercooren on cellular mechanisms of CNS remyelination with a special focus on stem cells and their role in the repair process. Our goal is dual: unravel some of the cellular mechanisms involved in the process of remyelination and develop strategies promoting myelin repair.

ENP Students

Sabah MOZAFARI

Team members

DEBOUX Cyrille
KERNINON Christophe
MOISSONNIER Pierre
MOLL Natalia
SPIGONI Giulia
TEPAVCEVIC Vanja
THIBAUD Julie
TOUSSAINT Charline
VIDAL Marie
ZUJOVIC Violetta
BACHELIN Corinne
WEGENER Amélie

Lab rotation

Activity Dependent Control of (Re)-Myelination

Team leader: 

NAIT OUMESMAR Brahim

Dates: 

January 2, 2018 - June 29, 2018

Application deadline: 

June 29, 2018

Period

~ Jan-March 2018

~ April-June 2018

Project

In vertebrates, the fast conduction of action potentials along axons relies on myelinated internodes. In the CNS, myelin is produced by oligodendrocytes. Compelling evidences indicate that oligodendrocyte progenitor cells (OPCs) can sense neuronal activity, highlighting the vital importance of axon-OPC interactions in the regulation of the myelination process. However, the mechanisms underlying activity dependent control of myelination and remyelination remain poorly understood. This lab rotation proposal project aims at exploring the role of axon-OPC synapses using cutting-edge 2-photon microscopy, calcium imaging and optogenetic tools in zebrafish models.

Contact

Institut du Cerveau et de la Moelle épinière - 47, Boulevard de l’Hôpital, 75013 Paris - +33 1 57 27 41 24 - brahim.nait_oumesmar@upmc.fr

Supervisor: 

GRACIARENA Mariana